Combined tank and pot furnace.



No. 832,570. PATBNTED OCT. 2, 1906.

- J. A. CHAMBERS.

COMBINED TANK AND POT FURNACE.

APPLICATION FILED JAN. 10. 1906.

5 SHEETS-SHEET 1.

wrmzsses mvsn'ron J. A. CHAMBERS. COMBINED TANK AND POT FURNACE.

PATENTED OCT. 2, 1906.

APPLICATION FILED JAN. 10, 1906.

a SHEETS-SHEET 2.

WITNESSES INVENTOR 141 HI.,Q.MM

a fizz No. 832,570. IATENTED OCT. 2, 1906.

J. A. GHAMBERS.

COMBINED TANK AND POT FURNACE. APPLICATION FILED JANJO. 1900.

5 SHEETS-SHEET 3.

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' WITNESSES INVENTOR WMMXW law a. M C. I A7 JM 4, A/MI J. A. CHAMBERS.

' I COMBINED TANK AND POT FURNACE.

APPLIUATION FILED JAILIO. 1906.

PATENTED OUT. 2, 1906.

5 SHEETS-SHBET 4.

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w rrnesszs INVENTOR %WW I UNITED STATES PATENT OFFICE JAMES A; CHAMBERS, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR TO GEORGE T. OLIVER, OF ALLEGHENY COUNTY, PENNSYLVANIA.

COMBINED TANK AND POT FURNACE.

Specification of Letters Patent.

Patented Oct. 2-, 1906.

Applicati n fil d January 10,1906. Serial No. 296.363.

To all whom it may concern.-

Be it known that I, JAMES A. CHAMBERS, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in a Combined Tank and Pot Furnace, of which the following is a full, clear, and exact description, reference being had to the accompanying drawin s, forming part of this specification, in whic Figure 1 is a longitudinal vertical sectional view of a combined pot and tank furnace, illustrating my invention. Fig. 2 is a horizontal sectional view of the same. Fig. 3 is a vertical cross-sectional view of the same.

- Fig. 4 is an end view, partially broken away.

Fig. 5 is a plan view of a modified form of turn-table. Fig. 6 is a vertical sectional view of the same. Fig. 7 is a lan view of a modification. Fig. 8 is a orizontal sectional view of a modified form of tank and pot furnace.

Like symbols of reference indicate like parts wherever the occur.

My invention re ates to the manufacture of glass and glassarticles; and it is designed to provide means for melting and fining glass in a tank-furnace, causing it to flow into a receptacle or receptacles within a chamber in the tank-setting and bringing the receptacle or receptacles containing the molten glass to the drawing apparatus, where the glass is drawn, and heating the receptacle or receptacles after the glass has been drawn therefrom and durin the return-passage of the receptacle to the ow of the tank-furnace.

I will now describe my invention so that others skilled in the art to which it appertains may employ the same.

Referring to Figs. 1, 2, and S of the drawings, 2 and 2 indicate aportion of a glasstank furnace divided by a bridge-wall 7 into a melting-chamber 2 and a fining-chamber 2, the two chambers communicating by a passage or passages 3 at or near the bottom thereof. The fining-chamber 2 at the end of the tank opposite to that where the batch is fed in is provided with an overflow-trough 3, which trough is shown in all figures of the drawings, except-ing Fig. 4. Above this trough the tank-chamber communicates by a neck 4 with a pot-chamber 4, which chamber contains a rotary turn-table 5, in which pots 6 are set in an annular series. The bevelgear 8 for turning the table 5 may be located in a pit beneath the pot-chamber. Directly below the turn-table 5 are the auxiliary heating-fines 9, by means of which the bottom of the table and pots are heated. Suitable heating-fines 10 are arranged at suitable points in the'side walls of the tank-chamber. The pot-chamber 4 is arranged to extend over but a portion of the turn-table 5 and to inclose but a portion ofthe pots 6. Adjacent to the pot-chamber 4. is the drawingroom or platform 11, which is formed by building this corner of the furnace to a level with the top of the table and leaving an open space above the table 5 for the drawing apparatus 12, the table by its revolution bringing the pots in succession beneath the same, whereby the glass may be drawn from the pots one by one in succession or in series of two or more, the size of the drawing-room being made to accord with the number of pots to be contained therein.

In the drawings I have shown the drawingroom or platform of such size as to accommodate four pots and four drawing-baits; but I do not desire to limit myself to this number, as it may be of such size as to accommodate a single pot or series of pots. This drawingroom 11 is separated from the pot-chamber 4 by a mantle 13, which extends downwardly to such a point as will leave merely room for the rotation of the table and pots. 'At one side of the pot-chamber 4 and drawing-room 11 is a heating-chamber 14, which is separated therefrom by a mantle 15, similar to the mantle 13. At the sides of this heating-chamber are the heating-fines 16.

In using this furnace the glass is allowed to pass from the tank into the successive pots, and the turn-table is turned intermittently until four of the pots in the pot-chamber having been filled one by one with molt-en glass from the trough 3 are brought into the drawing-room 11, where the glass is drawn into cylinders simultaneously from all four pots by suitable drawing apparatus. As soon as the drawing operation iscompleted the table isagain rotated intermittently, al-

lowing other pots to be filled and bringing a v fresh series of filled pots into the drawingroom, where the glass is drawn, as has already been described. Suitable devices of course are employed by means of which the glass may be caused to flow through the trough 3 and by means of which this flow may be regulated. After tire glass has been drawn from the series of pots in the manner described the pots, h Ting more or less chilled glass adhering to their bottom and sides, pass one by one into the heating-chamber 14. The temperature this heating-chamber is kept by the fines at a much higher de ree than the temperature in the po t-cham er, to the purpose being to maintain such a temperature as will rapidly melt the chilled glass in the empty pots before these pots are re' filled from the tank-chamber.

Heretofore in refilling empty pots when 5 the hot glass is poured upon the chilled lass that adheres to the bottom and sides of the empty pot, as described, an imperfect mix ture of glass is formed between the hot glass from the fining-tank and the chilled glass in the pot, which results in a poor quality of glass and also makes it difficult to draw the glass properly in the drawing operation.

By the use of this heating-chamber 14 the chilled glass remaining in the pots is thor- 011 hly melted by the heat in the chamber be ore the pot reaches the trough 3.

In Figs. 5 and 6 instead of the pots 6 set in holes in the turn-table I show receptacles 18, formed in the table itself.- These receptacles 3 -may communicate with each other through the lag-openings 19.

In Fig. 7 I show a single receptacle 20, formed in the table, that is in reality a single large pot or tank formed in the top ofthe 3 5 table itself. In using this table I employ floating clay rings 21, which are of such size as to pass under the mantle 15. These rings are designed to enable the glass to be drawn into cylinders.

In Fig. 8 I have shown two pot-furnaces connected with a single tank-chamber, each pot-furnace having its heating-chamber and drawing-room.

The advantages of my invention result from placing the pot-chamber, drawingroom, and heating-chamber adjacent to each other andin the path of rotation of the table,

and also in keeping the table heated during its rotation below the drawing-room.

from the pot-cham Variations may be made in the form and arrangement of the parts Without departing from my invention:

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a combined tank and pot furnace, the combination of a tank-chamber, a potchamber, a turn-table, a drawing-room, and apot-heating chamber, substanti ally as speci- 2. In a combined tank and pot furnace, the combination of a tank-chamber, a potchamber, a turn-table, a drawin -room, .a pot-heating chamber, and heating evices by means of which the pot-heating chamber may be heated to .a higher temperature than the pot-chamber, substantially as specified.

3. In a combined tank and pot furnace, the combination of a tank-chamber, a pot-chamber, a turn -table, devices for heating the lower face of the turn-table, a drawing-room, and a pot-heating chamber, substantially as specified. v I

4. In a combined tank and pot furnace, the combination of a tank-chamber, a pot-chamher, a drawing-room, a pot-heating chamber, a mantle separating the pot-chamber from the drawing-room, a mantle separating the drawing-room from the pot-heating chamber, a mantle separatin the pot-heating chamber er, and devices for carrying the pots to and from the drawing-room, substantially as specified.

5. In a glass-furnace, a rotatory table adapted to carry molten glass and auxiliary devices for heating the under face of the table, substantially as specified.

6. In a glass -furnace, a rotatory table adapted to carry molten glass, devices for r0 tating the table, and auxiliary fines for heating the under face of the table, substantially as specified.

In testimony my hand.

whereof I have hereunto set JAMES A. CHAMBERS.

Witnesses:

JAMES K. BAKEWELL, CARRIE E. Eeonns. 

